CN117982110A - External skin injury sampling device under skin mirror - Google Patents
External skin injury sampling device under skin mirror Download PDFInfo
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- CN117982110A CN117982110A CN202410405186.2A CN202410405186A CN117982110A CN 117982110 A CN117982110 A CN 117982110A CN 202410405186 A CN202410405186 A CN 202410405186A CN 117982110 A CN117982110 A CN 117982110A
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- 238000005070 sampling Methods 0.000 title claims abstract description 16
- 208000028990 Skin injury Diseases 0.000 title claims description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 37
- 239000011229 interlayer Substances 0.000 claims abstract description 26
- 206010040882 skin lesion Diseases 0.000 claims abstract description 16
- 231100000444 skin lesion Toxicity 0.000 claims abstract description 16
- 238000005192 partition Methods 0.000 claims description 19
- 239000010410 layer Substances 0.000 claims description 18
- 230000009471 action Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 210000001519 tissue Anatomy 0.000 description 22
- 210000003491 skin Anatomy 0.000 description 17
- 238000003745 diagnosis Methods 0.000 description 9
- 230000001575 pathological effect Effects 0.000 description 9
- 230000037380 skin damage Effects 0.000 description 9
- 238000007390 skin biopsy Methods 0.000 description 4
- 239000008280 blood Substances 0.000 description 3
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- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 230000007170 pathology Effects 0.000 description 3
- 208000017520 skin disease Diseases 0.000 description 3
- 206010025421 Macule Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 201000010153 skin papilloma Diseases 0.000 description 2
- 206010059313 Anogenital warts Diseases 0.000 description 1
- 206010004146 Basal cell carcinoma Diseases 0.000 description 1
- 206010018691 Granuloma Diseases 0.000 description 1
- 208000022535 Infectious Skin disease Diseases 0.000 description 1
- 206010039796 Seborrhoeic keratosis Diseases 0.000 description 1
- 241000934136 Verruca Species 0.000 description 1
- 208000000260 Warts Diseases 0.000 description 1
- 206010000496 acne Diseases 0.000 description 1
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- 230000001070 adhesive effect Effects 0.000 description 1
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- 210000004207 dermis Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 210000000416 exudates and transudate Anatomy 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
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- 208000008588 molluscum contagiosum Diseases 0.000 description 1
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- 231100000915 pathological change Toxicity 0.000 description 1
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Abstract
The invention belongs to the technical field of medical equipment, and particularly relates to a device for obtaining exogenous skin lesions under a dermatoscope; the method is mainly used for: in combination with a dermatoscope, sampling the exotic skin lesion tissue under the dermatoscope; the skin mirror comprises a main body part connected with a skin mirror, wherein the main body part is provided with a baffle plate with a first through hole; the fastener is arranged on the outer wall of the main body and can move towards the two ends of the main body; wherein the end portion is tightened by the fastener as the fastener is moved toward the end of the body member to which the dermatological lens is attached; the rotating piece is sleeved on the outer wall of the main body piece and provided with a first rotating direction and a second rotating direction relative to the main body piece, and an interlayer is formed at one end of the rotating piece; the cutting structure is arranged in the interlayer and is in a gathering state and a withdrawing state, and when the rotating piece rotates in a first rotating direction, the cutting structure is in the gathering state; when the rotating member rotates in the second rotation direction, the cutting structure is in a retracted state.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to a device for obtaining exogenous skin lesions under a dermatoscope.
Background
The dermatoscope is a non-invasive examination tool which is emerging in recent years, can reflect the characteristics of skin structures, pigments, blood vessels and skin appendages, assists in skin disease diagnosis and efficacy evaluation, and has the advantages of physical examination, real-time imaging, rapid diagnosis, painless, noninvasive, repeatability and the like.
The existing skin diseases are various, clinical manifestations are different, skin lesions are more various, there are macula, macula and the like which are flush with surrounding skin, raised pimples, nodules, plaques and the like which protrude from the skin surface, and skin lesions which deeply invade the deep dermis and even subcutaneous fat layers.
In the clinic of dermatology, the exogenous skin lesions protruding from the skin surface are often scraped by using tools such as curettage, so as to finish skin biopsy or operation treatment, and the external skin lesions are mainly used for treating infectious skin diseases such as verruca vulgaris, verruca plana, condyloma acuminatum, molluscum contagiosum and the like, and skin lesions such as seborrheic keratosis, basal cell carcinoma, squamous cell carcinoma, suppurative granuloma, molluscum, skin angle and the like.
Before performing skin biopsy pathological examination or skin surgical operation treatment, a dermatoscope is often used for assisting disease diagnosis, judging benign and malignant tumors, then the operation room is entered for completing operation operations such as scraping, skiving and the like, and scraping under the scope can not be completed at the same time of the dermatoscopy, so that the treatment links of a patient and the workload of doctors are increased, and the dermatoscopy images and pathological images of the same parts can not be obtained, and the advantage of assisting disease diagnosis of the dermatoscopy can not be exerted.
In addition, the selection of the sampling position for the pathological examination of skin biopsy is also a key point for clear disease diagnosis, but at present, although a dermatoscope is used for assisting in skin disease diagnosis in clinic, in the process of sampling skin biopsy, a clinician uses a curet, a scraper, a scalpel and the like for sampling under the naked eye observation, so that the problem that errors occur in the sampling position and a sample with enough definite diagnostic significance is not taken still exists.
The invention aims at the problems and provides a device for taking exogenous skin lesions under a skin scope.
Disclosure of Invention
In order to overcome the problems in the background art, the invention adopts the following technical scheme:
an external skin lesion sampling device under a skin mirror, which comprises:
The device comprises a main body piece, a first connecting piece and a second connecting piece, wherein the main body piece is provided with a first end and a second end, and the first end is provided with a partition plate with a first through hole;
a fastener disposed on an outer wall of the main body member and movable toward and away from the first end; wherein the second end is tightened by the fastener as the fastener is moved in a direction away from the first end;
The rotating piece is sleeved on the outer wall of the main body piece, so that the partition board is arranged in the rotating piece; an interlayer is formed at one end of the rotating piece, and a second through hole is formed to penetrate through the interlayer; the rotating piece is provided with a first rotating direction and a second rotating direction relative to the main body piece;
The cutting structure is arranged in the interlayer, and the cutting structure part penetrates out of the interlayer and is connected with the partition board in a sliding manner;
The cutting structure has a gathering state and a withdrawing state, and gathers towards the axial direction of the first through hole/the second through hole when the rotating piece rotates in the first rotating direction; when the rotating member rotates in the second rotation direction, the cutting structure moves in a direction away from the first through hole/the second through hole.
In some embodiments of the application, the interlayer has an upper plate and a lower plate, the upper plate being bonded to the separator;
the partition plate is further provided with an arc-shaped guide groove, the upper layer plate is provided with a straight guide groove, and the cutting structure at least partially penetrates through the straight guide and stretches into the arc-shaped groove.
In some embodiments of the application, the cutting structures each comprise:
The blades are circumferentially distributed in the interlayer around the axis of the first through hole/the second through hole, and one surfaces of the blades are attached to the lower layer plate; wherein each blade has a first connection point, a second connection point, and a third connection point;
The connecting pieces are circumferentially distributed in the interlayer around the axis of the first through hole/the second through hole, are positioned above the blade in the thickness extending direction of the connecting pieces, and are provided with a fourth connecting point, a fifth connecting point and a sixth connecting point;
A connecting shaft connecting the first connecting point of one blade with the fourth connecting point of one connecting sheet above the blade, wherein the connecting shaft passes through the straight guide groove and enters the arc-shaped guide groove;
The second connection point of one blade is hinged with the fifth connection point of one connecting sheet on the adjacent side, the third connection point of the blade is hinged with the sixth connection point of one connecting sheet on the adjacent side, and when the rotating piece rotates in the first rotating direction or the second rotating direction, the blades and the connecting sheets move along the straight guide grooves under the action of the arc-shaped guide grooves to form a gathering state or a retraction state.
Further, each of the blades has a first blade edge and a second blade edge, wherein the first blade edge intersects the second blade edge to form a tip.
Further, the diameter of the connecting shaft is the same as the widths of the arc-shaped guide groove and the straight guide groove.
In some embodiments of the application, the body member further has:
A retainer ring formed on an inner wall of the body member; wherein the retainer ring is concentric with the first through hole.
In some embodiments of the application, the second end is configured to:
The elastic sheets are circumferentially distributed on the main body piece around the axis of the first through hole;
Wherein the tail ends of the elastic sheets incline towards the axial direction far away from the first through hole; when the fastener moves in the direction away from the first end, the elastic pieces gather in the axial direction of the first through hole.
Further, the fastener is in a cylindrical shape, wherein the inner wall of the fastener is formed with a first thread;
The outer walls of the elastic sheets are respectively provided with a second thread, and the second threads are meshed with the first threads.
Further, the inner walls of the elastic sheets are adhered with anti-slip pads.
The invention has the beneficial effects that:
1. by arranging the main body part, when in use, the lens end of the dermatoscope is inserted into the main body part from the second end, and the fastening piece is moved to form a tight connection relationship between the main body part and the dermatoscope; and the first through hole and the second through hole ensure that the dermatoscope can observe pathological tissues, so that the difficulty of scaling, crusting and exudates on the outer layer of the skin damage tissues to the selection of the typical skin damage tissues is reduced when the typical pathological change part with diagnostic value is selected under the dermatoscope.
2. Through rotating piece and cutting structure, realize taking a sample to the skin damage tissue that has diagnostic value that selects under the dermatoscope, avoid taking the sample that does not have diagnostic meaning when taking a sample, reduced the probability that causes misdiagnosis or missed diagnosis, simultaneously, reduced patient's link of seeing a doctor and doctor work load, practice thrift patient's time, improve diagnosis and treat efficiency.
3. Through the cutting structure, after the skin damage tissue is collected on the human body, the collected pathological specimen is isolated from the human body, and the pathological specimen is prevented from being stained with blood.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the body member of the present invention after it is attached to a dermatological mirror;
FIG. 3 is a schematic view of the cutting structure of the present invention in a retracted state;
FIG. 4 is a schematic view of the transition from the retracted state to the gathered state of the cutting structure of the present invention;
FIG. 5 is a schematic view of the cutting structure of the present invention in a gathered state;
FIG. 6 is a schematic view of the second end of the body member of the present invention;
FIG. 7 is a schematic view of a connector structure according to the present invention;
FIG. 8 is a schematic view of a sandwich structure of the present invention;
FIG. 9 is a schematic view of a blade arrangement of the present invention;
FIG. 10 is a schematic view of a straight guide slot structure according to the present invention;
FIG. 11 is a schematic view of an arcuate guide slot structure of the present invention;
FIG. 12 is a schematic view of a connecting piece according to the present invention;
FIG. 13 is a schematic view of a blade structure of the present invention;
In the figure, 1, a main body member; 111. a partition plate; 112. a first through hole; 113. an arc-shaped guide groove; 114. a retainer ring; 12. a second end; 121. an elastic sheet; 122. an anti-slip pad; 13. a fastener; 14. a rotating member; 141. an interlayer; 142. a second through hole; 143. a straight guide groove; 15. a blade; 151. a first connection point; 152. a second connection point; 153. a third connection point; 16. a connecting sheet; 161. a fourth connection point; 162. a fifth connection point; 163. a sixth connection point; 2. a dermatoscope.
Detailed Description
The following detailed description of the embodiments of the present invention will be made more apparent to those skilled in the art from the following detailed description, in which the invention is embodied in several, but not all, embodiments of the invention. The invention may be embodied or applied in other specific forms and features of the following examples and examples may be combined with each other without conflict, all other examples being contemplated by those of ordinary skill in the art without undue burden from the present disclosure, based on the examples of the invention.
Fig. 1 to 3 and fig. 6 to 8 show the main technical content of this embodiment, and this embodiment provides an exogenous skin injury sampling device under a dermatoscope 2, which includes:
a body member 1, the body member 1 having a first end and a second end 12, wherein the first end is provided with a partition 111 having a first through hole 112;
A fastener 13 disposed on the outer wall of the main body 1 and movable in a direction toward and away from the first end; wherein the second end 12 is tightened by the fastener 13 as the fastener 13 is moved in a direction away from the first end;
A rotating member 14 sleeved on the outer wall of the main body member 1, so that the partition 111 is located in the rotating member 14; an interlayer 141 is formed at one end of the rotating member 14, and a second through hole 142 is formed to penetrate the interlayer 141; wherein the rotating member 14 has a first rotation direction and a second rotation direction with respect to the main body member 1;
a cutting structure, which is arranged in the interlayer 141, and the part of the cutting structure penetrating out of the interlayer 141 is connected with the partition 111 in a sliding way; wherein, when the rotating member 14 rotates in the first rotation direction, the cutting structure gathers toward the axis direction of the first through hole 112/the second through hole 142; when the rotary member 14 rotates in the second rotation direction, the plurality of cutting structures move away from the first through hole 112/the second through hole 142.
In use, the lens end of the dermatoscope 2 is inserted into the second end 12 of the body member 1, the rotational fastener 13 is moved in a direction away from the first end, and at this time, the second end 12 is tightened by the fastener 13, thereby bringing the body member 1 into a connecting relationship with the dermatoscope 2; the first through hole 112 and the second through hole 142 are concentric and are regarded as observation openings, the dermatoscope 2 can observe the exogenous skin injury through the first through hole 112 and the second through hole 142, after a material taking position is selected, the rotation piece 14 is rotated in a first rotation direction, so that the cutting structure gathers towards the axis direction of the first through hole 112/the second through hole 142, the exogenous skin injury tissue is cut off, at the moment, the cutting structure seals the second through hole 142, then the rotation piece 14 can be rotated in a second rotation direction, the cutting structure moves away from the second through hole 142, and the second through hole 142 is unsealed.
Referring to fig. 1-3 and 8, in the present embodiment, a cavity is formed inside the main body 1, wherein a retainer 114 is disposed along an inner wall of the main body 1, wherein the retainer 114 is concentric with the first through hole 112, and more specifically, a distance between the retainer 114 and the partition 111 is smaller than a distance between the retainer 114 and the second end 12; in use, the lens end of the dermatoscope 2 is inserted into the main body 1 from the second end 12 until the lens end of the dermatoscope 2 abuts against the retainer ring 114, so as to prevent the dermatoscope 2 from sliding in the cavity after the fastener 13 tightens the second end 12.
In order to achieve the tight connection between the main body 1 and the skin mirror 2, refer to fig. 2-3 and fig. 6-7, in this embodiment, the second end 12 of the main body 1 is configured to be composed of a plurality of elastic pieces 121, wherein the plurality of elastic pieces 121 are circumferentially distributed on the main body 1 around the axis of the first through hole 112, the elastic pieces 121 and the main body 1 are integrally formed, wherein the tail ends of the plurality of elastic pieces 121 incline away from the axis of the first through hole 112, so that an included angle is formed between the tail ends and the axis of the first through hole 112, so that the lens end of the skin mirror 2 can be easily inserted into the second end 12, and when the fastener 13 moves towards the direction away from the first end (i.e. towards the tail ends of the elastic pieces 121), the plurality of elastic pieces 121 gather towards the axis of the first through hole 112, so that each elastic piece 121 tightens the lens end of the skin mirror 2 located between the elastic pieces 121.
Referring to fig. 2 and 6, more specifically, the inner wall of each elastic sheet 121 is provided with a non-slip pad 122, and the non-slip pad 122 may be fixed to the inner wall of the elastic sheet 121 by an adhesive manner; when in use, each anti-slip pad 122 is closely attached to the outer wall of the dermatoscope 2, so that the main body part 1 can not rotate relative to the dermatoscope 2 when the rotating part 14 is rotated, and further the cutting structure is ensured to smoothly gather towards the axial direction of the first through hole 112/the second through hole 142; preferably, the anti-slip pad 122 may be made of a rubber material.
Referring to fig. 2 and 6, in the present embodiment, the fastener 13 is in a cylindrical shape, wherein the inner wall of the fastener 13 is formed with a first thread; the outer walls of the plurality of elastic pieces 121 are formed with second threads, the first threads are engaged with the second threads, when the fastening piece 13 is rotated clockwise during use, for example, the fastening piece 13 gradually moves towards the tail end of the elastic pieces 121 through the first threads and the second threads, at this time, the cylindrical fastening piece 13 gradually closes the elastic pieces 121, and the lens end of the dermatoscope 2 positioned between the elastic pieces 121 is held tightly.
Referring to fig. 3 to 5 and fig. 7 to 9, in the present embodiment, the rotary member 14 is in a cylindrical shape, the interlayer 141 is located at one end of the rotary member 14, more specifically, the interlayer 141 is composed of an upper plate and a lower plate with a gap, and after the rotary member 14 is connected to the main body member 1, the upper plate is bonded to the partition 111; specifically, the partition 111 has an arc-shaped guide groove 113; the upper plate is provided with a straight guide groove 143, at least part of the cutting structure penetrates through the straight guide groove 143 and is arranged in the arc-shaped groove, and in the movement process, the cutting structure gathers towards the axis direction of the first through hole 112/the second through hole 142 in a rotary mode under the action of the arc-shaped guide groove 113, so that the exogenous skin injury tissue is gradually cut from the outer layer to the inner layer, and the cutting structure is prevented from being poked into the exogenous skin injury tissue directly.
Referring to fig. 2-5 and fig. 7-11, in the present embodiment, the cutting structure may be formed by a plurality of blades 15, a plurality of connecting pieces 16 and a connecting shaft, specifically, the plurality of blades 15 are circumferentially distributed in the interlayer 141 around the axis of the first through hole 112/the second through hole 142, and one surface of the plurality of blades 15 is attached to the lower layer board; the plurality of connection pads 16 are circumferentially distributed in the interlayer 141 around the axis of the first through hole 112/the second through hole 142, wherein the plurality of connection pads 16 are located above the blades 15 in the thickness extension direction of the connection pads 16, more specifically (refer to fig. 10-13), each blade 15 has a first connection point 151, a second connection point 152 and a third connection point 153; each connecting piece 16 is provided with a fourth connecting point 161, a fifth connecting point 162 and a sixth connecting point 163, wherein a connecting shaft connects one first connecting point 151 with the fourth connecting point 161 of one connecting piece 16 above the blade 15, and after the connecting shaft connects the first connecting point 151 with the fourth connecting point 161, the connecting shaft passes through the straight guide groove 143 to enter into the arc-shaped groove, in addition, the second connecting point 152 of one blade 15 is hinged with the fifth connecting point 162 of one connecting piece 16 on the adjacent side, the third connecting point 153 of the blade 15 is hinged with the sixth connecting point 163 of one connecting piece 16 on the adjacent side, in this way, each blade 15 and the connecting piece 16 adjacent to the blade 15 are connected, when the rotating piece 14 rotates in a first rotating direction or a second rotating direction, the connecting shaft moves under the rotating force to enable each blade 15 to be in a gathering state or a straight guide groove 143, when in use, the outer skin tissue of a patient is placed in the second through hole 142, the skin 2 can be forced to hinge the third connecting point 153 of the blade 15 with the sixth connecting point 163 of one connecting piece 16 on the adjacent side, the blade 15 can gradually retract in the first rotating direction or the second rotating direction, the outer skin tissue can gradually rotate around the second through the second rotating direction, the second through the gathering direction, the outer tissue layer can gradually rotate towards the second through the first rotating direction, the second through hole 112, and the outer tissue layer can gradually rotate, and the outer tissue layer can gradually completely; thereby reducing the patient treatment links and the workload of doctors, saving the time of patients and improving the diagnosis and treatment efficiency.
Referring to fig. 11, more specifically, the outer wall of the connecting shaft is always in a tangential state with the arc-shaped guide groove 113 and the inner wall of the straight guide groove 143, so that the blades 15 do not shake after gathering, and the blades 15 are not displaced by stress when cutting the skin tissue.
Referring to fig. 9 to 12, more specifically, the number of the blades 15, the connection piece 16, the arc-shaped guide groove 113 and the straight guide groove 143 is the same, and preferably, the number of the blades 15 is set to 6; under the state of gathering together, each blade 15 seals second through-hole 142, and the pathology sample is located the intermediate layer 141 this moment, and each blade 15 separates the pathology sample of taking from the human body, has avoided pathology sample to be stained with the blood stain.
Referring to fig. 12, in addition, each blade 15 has a first blade and a second blade, where the first blade and the second blade meet to form a tip, and in use, the tip first contacts with the exogenous skin damage tissue of the patient, and along with the continuous rotation, the tip cuts into the exogenous skin damage tissue along an arc-shaped movement track, so as to ensure the flatness of the cutting surface until the exogenous skin damage tissue is completely resected, so that the blade 15 does not cut thoroughly to the exogenous skin damage tissue and cannot be separated from the human body in the cutting process.
As an alternative (not shown), the rotary part 14 has only a lower plate, wherein after the rotary part 14 is sleeved on the main body part 1, a receiving cavity is formed between the lower plate and the partition 111, wherein a plurality of sliding grooves are arranged on the surface of the lower plate facing the partition 111, and a plurality of connecting holes are arranged on the partition 111.
The cutting structure is composed of a plurality of blades 15; wherein, each blade 15 has a first surface and a second surface opposite to each other, wherein the first surface is provided with a rectangular protrusion, the second surface is provided with a connecting shaft, the rectangular protrusion is configured in the chute, the connecting shaft is inserted in the connecting hole, when the rotating member 14 rotates in the first rotation direction, the inner wall of the chute acts on the outer wall of the rectangular protrusion, and then each blade 15 gathers towards the axial direction of the first through hole 112/the second through hole 142, so as to cut off the external skin damage tissue in the second through hole 142; conversely, when the rotary member 14 rotates in the second rotation direction, the respective blades 15 are made to be away from the first through holes 112/the second through holes 142, and the respective blades 15 at this time are rendered in a dispersed state.
The application method of the invention comprises the following steps:
1. inserting the lens end of the dermatoscope into the second end of the main body piece until the lens end of the dermatoscope abuts against the retainer ring, rotating the fastener towards the tail end of the elastic piece, and tightly holding the lens end of the dermatoscope between the elastic pieces;
2. The lesion part of the patient is arranged in the second through hole, the periphery of the exogenous skin injury tissue can be pressurized through the application of force of the dermatoscope, so that the exogenous skin injury tissue is slightly raised, the rotating piece is rotated in the first rotation direction, the blades are enabled to rotate circumferentially around the axis of the first through hole/the second through hole and gather towards the axis direction of the first through hole/the second through hole, and further the gradual cutting from the outer layer of the exogenous skin injury tissue to the inner layer is realized;
3. The pathological specimen after being cut is positioned in the interlayer, and each blade separates the taken pathological specimen from a human body, so that the pathological specimen is prevented from being stained with blood.
The above description of embodiments is only for the understanding of the present invention. It should be noted that it will be apparent to those skilled in the art that modifications can be made to the present invention without departing from the principles of the invention, and such modifications will fall within the scope of the claims.
Claims (10)
1. An external skin injury sampling device under a skin mirror is characterized in that the device comprises,
The device comprises a main body piece, a first connecting piece and a second connecting piece, wherein the main body piece is provided with a first end and a second end, and the first end is provided with a partition plate with a first through hole;
a fastener disposed on an outer wall of the main body member and movable toward and away from the first end; wherein the second end is tightened by the fastener as the fastener is moved in a direction away from the first end;
The rotating piece is sleeved on the outer wall of the main body piece, so that the partition board is arranged in the rotating piece; an interlayer is formed at one end of the rotating piece, and a second through hole is formed to penetrate through the interlayer; the rotating piece is provided with a first rotating direction and a second rotating direction relative to the main body piece;
The cutting structure is arranged in the interlayer, and the cutting structure part penetrates out of the interlayer and is connected with the partition board in a sliding manner;
The cutting structure has a gathering state and a withdrawing state, and gathers towards the axial direction of the first through hole/the second through hole when the rotating piece rotates in the first rotating direction; when the rotating member rotates in the second rotation direction, the cutting structure moves in a direction away from the first through hole/the second through hole.
2. The dermatological external skin lesion sampling device according to claim 1, wherein,
The interlayer is provided with an upper layer plate and a lower layer plate, and the upper layer plate is attached to the partition plate;
the partition plate is further provided with an arc-shaped guide groove, the upper layer plate is provided with a straight guide groove, and the cutting structure at least partially penetrates through the straight guide and stretches into the arc-shaped groove.
3. The dermatological external skin lesion sampling device according to claim 2, wherein,
The cutting structures each include:
The blades are circumferentially distributed in the interlayer around the axis of the first through hole/the second through hole, and one surfaces of the blades are attached to the lower layer plate; wherein each blade has a first connection point, a second connection point, and a third connection point;
The connecting pieces are circumferentially distributed in the interlayer around the axis of the first through hole/the second through hole, are positioned above the blade in the thickness extending direction of the connecting pieces, and are provided with a fourth connecting point, a fifth connecting point and a sixth connecting point;
A connecting shaft connecting the first connecting point of one blade with the fourth connecting point of one connecting sheet above the blade, wherein the connecting shaft passes through the straight guide groove and enters the arc-shaped guide groove;
The second connection point of one blade is hinged with the fifth connection point of one connecting sheet on the adjacent side, the third connection point of the blade is hinged with the sixth connection point of one connecting sheet on the adjacent side, and when the rotating piece rotates in the first rotating direction or the second rotating direction, the blades and the connecting sheets move along the straight guide grooves under the action of the arc-shaped guide grooves to form a gathering state or a retraction state.
4. The device of claim 3, wherein each blade has a first blade edge and a second blade edge, wherein the first blade edge and the second blade edge meet to form a tip.
5. The device of claim 3, wherein the diameter of the connecting shaft is the same as the width of the arcuate guide slot and the straight guide slot.
6. The dermatological external skin lesion sampling device according to claim 1, wherein,
The body member further has:
A retainer ring formed on an inner wall of the body member; wherein the retainer ring is concentric with the first through hole.
7. The dermatological exogenous skin lesion sampling device of claim 1, wherein the first through hole is concentric with the second through hole and the first through hole and the second through hole have the same diameter.
8. The dermatological external skin lesion sampling device according to claim 1, wherein,
The second end is configured to:
The elastic sheets are circumferentially distributed on the main body piece around the axis of the first through hole;
Wherein the tail ends of the elastic sheets incline towards the axial direction far away from the first through hole; when the fastener moves in the direction away from the first end, the elastic pieces gather in the axial direction of the first through hole.
9. The dermatological external skin lesion sampling device of claim 8, wherein,
The fastener is cylindrical, wherein a first thread is formed on the inner wall of the fastener;
The outer walls of the elastic sheets are respectively provided with a second thread, and the second threads are meshed with the first threads.
10. The device of claim 8, wherein the inner walls of the plurality of elastic sheets are adhered with anti-slip pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410405186.2A CN117982110B (en) | 2024-04-07 | External skin injury sampling device under skin mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410405186.2A CN117982110B (en) | 2024-04-07 | External skin injury sampling device under skin mirror |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117982110A true CN117982110A (en) | 2024-05-07 |
| CN117982110B CN117982110B (en) | 2024-07-02 |
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| US5209755A (en) * | 1992-06-05 | 1993-05-11 | Stella Abrahan | Dermal exciser |
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